Sat Duan Sip festival is the festival in southern Thailand. Sat Duan Sip festival is celebrated to honor ancestors. This festival is during the fifteen days of the moon period in the tenth lunar month. The beginning of Sat Duan Sip festival is Nakhon Si Thammarat province. Buddhist Thais believe the deceased visit the human world, and the deceased will be released from the underworld.
Buddhist Thais believe the spirit of ancestors that is not yet reborn. The spirits that no relative, very tall, and hungry is called Prate. Buddhist Thai families arrange in their food container called Map. Map is making by bamboo or silver tray. Each family has different shape of Map depend on they will be decorated with colorful flower, leaf, and cloth. The inside of Map has foods, fruits, and sweets.